Marshalls’ Altair Granite is a hard-wearing, strong and durable granite suitable for all product areas such as paving, setts, kerbs, tactile, steps, water management, street furniture or other bespoke specialised masonry items such as veneers for planters or furniture.
This Black Indian granite has a subtle sparkle, giving it a striking look and is available in Flamed, Clear Blast, Blasted or Polished Finishes. Altair Granite, like all Marshalls Granites, is produced to ISO9001 quality assurance standards and fully tested to the appropriate standards in the UK, as well as being UKCA marked in accordance with the latest legislation.
Black granite with a subtle sparkle
Suitable for pedestrian and vehicular trafficked areas
Available as paving, setts, kerbs and other masonry items
Meets ISO9001 quality assurance standards
Available in a range of standard plan sizes
Bespoke size options can be accommodated upon request
Appearance - Black Granite
Manufacturing Process - Sawn
Geological Type - Granite
Quarry of Origin - Rajasthan, India
Governing Manufacturing Standards - All data where relevant to be established in accordance with BS EN 1341 : 2012, BS EN 1342 : 2012 & BS EN 1343 : 2012
Petrographical Description - Grey to dark grey, fine grained granite
Abrasion Resistance (mm)
15.5mm (Mean value to EN 14157 :
2004 (Hev = 16mm))
Durability (Freeze-thaw)
25.7/24.9 MPa (Mean values to EN
12371 : 2006)
Material Density
2780 kg/m³ (Mean value to EN
1936 : 2006)
Open Porosity (%)
0.4% (Mean value to EN 1936 :
2006)
Compressive Strength (MPa)
163 MPa (Mean value to EN 1926 :
2006 (Lev = 86 MPa))
Water Absorption (%)
0.1% (Mean value to EN 13755 :
2008 (Hev =0.1%)